Motor controller and method for controlling a motor after a power-loss event

• US 9,684,290 B2
• Filed: 05/05/2014
• Issued: 06/20/2017
• Est. Priority Date: 05/05/2014
• Status: Active Grant

• Current Assignee: Regal Beloit America, Inc.
• Original Assignee: Regal Beloit America, Inc.
• Inventors: McKinzie, Marc
• Primary Examiner(s): WANG, RONGFA PHILIP
• Application Number:
  US14/269,932
• Publication Number:
  US 20150316912A1
• Time in Patent Office: 1,142 Days
• Field of Search: None
• CPC Class Codes: G05B 15/02 electric
• CPC Class Codes: G05B 19/0426 Programming the control sequence
• CPC Class Codes: G05B 2219/24139 Recovery from power loss, failure
• CPC Class Codes: G05B 2219/2614 HVAC, heating, ventillation, climate control
• CPC Class Codes: H02P 29/025 the fault being a power interruption

Abstract

A motor controller and methods of controlling a variable speed motor using the motor controller after a power-loss event are described. The motor controller is configured to be coupled to a motor. The motor controller includes a computing device configured to determine power is being supplied to the motor controller a power-loss event. The computing device is also configured to operate the motor in accordance with a predetermined operating schedule such that the computing device operates the motor at a first speed for a first time period, and after completion of the first time period, the computing device operates the motor at a second speed for a second time period.

Claims

1. A motor controller configured to be coupled to a variable speed motor, said motor controller comprising a computing device configured to:

determine power is being supplied to the motor controller after a power-loss event;

determine whether user input information was received before the power-loss event; and

operate the motor in accordance with a predetermined operating schedule such that said computing device operates the motor at a first speed for a first time period, and after completion of the first time period, said computing device operates the motor at a second speed for a second time period.

2. The motor controller of claim 1, wherein said computing device is further configured to receive the user input information during an initial startup of the motor, the user input information instructing said computing device to begin motor operation in accordance with the predetermined operating schedule.

3. The motor controller of claim 2, wherein said computing device is further configured to store the user input information in a memory device associated with said computing device.

4. The motor controller of claim 1, wherein said computing device is further configured to automatically determine power is being supplied to the motor controller after a power-loss event and to automatically operate the motor in accordance with the predetermined operating schedule.

5. The motor controller of claim 1, wherein said computing device is further configured to automatically operate the motor in accordance with the predetermined operating schedule when the user input information was received before the power-loss event.

6. The motor controller of claim 1, wherein said computing device is further configured to wait until user input information is received before operating the motor when the user input information was not received before the power-loss event.

7. The motor controller of claim 1, wherein said computing device is further configured to retrieve the predetermined operating schedule from a memory device associated with said computing device.

8. The motor controller of claim 1, wherein said computing device is further configured to:

operate the motor at a third speed for a third time period after completion of the second time period.

9. A method of controlling a variable speed motor using a motor controller after a power-loss event, the motor controller including a computing device, said method comprising:

determining, by the computing device, that power is being supplied to the motor controller after a power-loss event;

determining whether user input information was received before the power-loss event; and

operating, by the computing device, the motor in accordance with a predetermined operating schedule, such that the computing device operates the motor at a first speed for a first time period, and after completion of the first time period, the computing device operates the motor at a second speed for a second time period.

10. The method of claim 9, further comprising receiving the user input information during an initial startup of the motor, the user input information instructing the computing device to begin motor operation in accordance with the predetermined operating schedule.

11. The method of claim 9, further comprising automatically operating the motor in accordance with the predetermined operating schedule when the user input information was received before the power-loss event.

12. The method of claim 9, further comprising waiting until user input information is received before beginning motor operation when the user input information was not received before the power-loss event.

13. The method of claim 9, further comprising automatically determining power is being supplied to the motor controller after a power-loss event and automatically operating the motor in accordance with the predetermined operating schedule.

14. The method of claim 9, wherein the motor controller is coupled to an external timer configured to supply power to the motor controller starting at a first time of day and to stop supplying power from the motor controller at a second time of day, said method further comprising:

determining power is being supplied to the motor controller at the first time of day;

operating the motor at a first speed for a first time period;

after completion of the first time period, operating the motor at a second speed for a second time period; and

ceasing operation of the motor when the external timer stops supplying power at the second time of day.

15. A non-transitory computer-readable storage device having processor-executable instructions embodied thereon, enabling control of a variable speed motor using a motor controller after a power-loss event, the motor controller including a computing device, wherein when executed by the computing device, the processor-executable instructions cause the computing device to:

determine power is being supplied to the motor controller after the power-loss event;

determine whether user input information was received before the power-loss event; and

operate the motor in accordance with a predetermined operating schedule such that the computing device operates the motor at a first speed for a first time period, and after completion of the first time period, the computing device operates the motor at a second speed for a second time period.

16. The non-transitory computer-readable storage device of claim 15, wherein to determine whether the user input information was received before the power-loss event, said processor-executable instructions further cause the computing device to:

receive the user input information instructing the computing device to begin motor operation in accordance with the predetermined operating schedule;

automatically operate the motor in accordance with the predetermined operating schedule when the user input information was received before the power-loss event; and

wait until user input information is received before operating the motor when the user input information was not received before the power-loss event.

17. The non-transitory computer-readable storage device of claim 15, wherein the motor controller is coupled to an external timer configured to supply power to the motor controller starting at a first time of day and to stop supplying power from the motor controller at a second time of day, said processor-executable instructions further cause the computing device to:

determine power is being supplied to the motor controller at the first time of day;

operate the motor at a first speed for a first time period;

after completion of the first time period, operate the motor at a second speed for a second time period; and

cease operation of the motor when the external timer stops supplying power at the second time of day.

18. A motor controller configured to be coupled to a variable speed motor, said motor controller comprising a computing device configured to:

determine power is being supplied to the motor controller after a power-loss event,

wherein said computing device is coupled to an external timer configured to supply power to the motor controller starting at a first time of day and to stop supplying power from the motor controller at a second time of day, said computing device is further configured to;

determine power is being supplied to the motor controller at the first time of day;

operate the motor at a first speed for a first time period;

after completion of the first time period, operate the motor at a second speed for a second time period; and

cease operation of the motor when the external timer stops supplying power at the second time of day.